text: /*
   *  Minimal configuration for using mbedtls as part of mbed-client
   *
   *  Copyright (C) 2006-2016, ARM Limited, All Rights Reserved
   *  SPDX-License-Identifier: Apache-2.0
   *
   *  Licensed under the Apache License, Version 2.0 (the "License"); you may
   *  not use this file except in compliance with the License.
   *  You may obtain a copy of the License at
   *
   *  http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing, software
   *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *  See the License for the specific language governing permissions and
   *  limitations under the License.
   *
   *  This file is part of mbed TLS (https://tls.mbed.org)
   */
  
  
  #ifndef MBEDTLS_CUSTOM_CONFIG_H
  #define MBEDTLS_CUSTOM_CONFIG_H
  
  /* System support */
  #define MBEDTLS_HAVE_ASM
  
  /* mbed TLS feature support */
  #define MBEDTLS_ECP_DP_SECP256R1_ENABLED
  #define MBEDTLS_ECP_NIST_OPTIM
  #define MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
  #define MBEDTLS_SSL_PROTO_TLS1_2
  #define MBEDTLS_SSL_PROTO_DTLS
  #define MBEDTLS_SSL_DTLS_ANTI_REPLAY
  #define MBEDTLS_SSL_DTLS_HELLO_VERIFY
  #define MBEDTLS_SSL_EXPORT_KEYS
  
  /* mbed TLS modules */
  #define MBEDTLS_AES_C
  #define MBEDTLS_ASN1_PARSE_C
  #define MBEDTLS_ASN1_WRITE_C
  #define MBEDTLS_BIGNUM_C
  #define MBEDTLS_CCM_C
  #define MBEDTLS_CIPHER_C
  #define MBEDTLS_CTR_DRBG_C
  #define MBEDTLS_ECP_C
  #define MBEDTLS_ENTROPY_C
  #define MBEDTLS_MD_C
  #define MBEDTLS_OID_C
  #define MBEDTLS_PK_C
  #define MBEDTLS_PK_PARSE_C
  #define MBEDTLS_SHA256_C
  #define MBEDTLS_SSL_COOKIE_C
  #define MBEDTLS_SSL_CLI_C
  #define MBEDTLS_SSL_SRV_C
  #define MBEDTLS_SSL_TLS_C
  
  // XXX mbedclient needs these: mbedtls_x509_crt_free, mbedtls_x509_crt_init, mbedtls_x509_crt_parse
  #define MBEDTLS_X509_USE_C
  #define MBEDTLS_X509_CRT_PARSE_C
  // a bit wrong way to get mbedtls_ssl_conf_psk:
  // XXX: this should be ifdef'd out from client too
  #define MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED
  
  // XXX: clean these up!!
  #define MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED
  #define MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED
  #define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
  #define MBEDTLS_SHA512_C
  #define MBEDTLS_ECDH_C
  #define MBEDTLS_GCM_C
  #define MBEDTLS_CCM_C
  
  #define MBEDTLS_PKCS1_V15
  
  #define MBEDTLS_CIPHER_MODE_CBC
  #define MBEDTLS_ECDH_C
  #define MBEDTLS_ECDSA_C
  #define MBEDTLS_X509_CRT_PARSE_C
  
  // Remove RSA, save 20KB at total
  #undef MBEDTLS_RSA_C
  #undef MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED
  
  // Remove error messages, save 10KB of ROM
  #undef MBEDTLS_ERROR_C
  
  // Remove selftesting and save 11KB of ROM
  #undef MBEDTLS_SELF_TEST
  
  #undef MBEDTLS_SSL_COOKIE_C
  
  // Reduces ROM size by 30 kB
  #undef MBEDTLS_ERROR_STRERROR_DUMMY
  #undef MBEDTLS_VERSION_FEATURES
  #undef MBEDTLS_DEBUG_C
  
  // needed for parsing the certificates
  #define MBEDTLS_PEM_PARSE_C
  // dep of the previous
  #define MBEDTLS_BASE64_C
  
  // reduce IO buffer to save RAM, default is 16KB
  #define MBEDTLS_SSL_MAX_CONTENT_LEN 2048
  
  // define to save 8KB RAM at the expense of ROM
  #undef MBEDTLS_AES_ROM_TABLES
  
  // Save ROM and a few bytes of RAM by specifying our own ciphersuite list
  #define MBEDTLS_SSL_CIPHERSUITES MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
  
  #include "mbedtls/check_config.h"
  
  #endif /* MBEDTLS_CUSTOM_CONFIG_H */
  